* {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
html {
    -webkit-tap-highlight-color: rgba(0,0,0,0);
    font-family: sans-serif;
    -webkit-text-size-adjust: 100%;
}
.center{text-align: center;}	
.content{min-height: 10rem;}
.pb{padding-bottom: 1rem;}
.tag{float: right;}
.mr{margin-right: 5px;}

.nav-tabs {
    border-bottom: 1px solid #ddd;
}
.nav {
    padding-left: 0;
    margin-bottom: 0;
    list-style: none;
}
.nav:before {
    display: table;
    content: " ";
}
.nav:after{
    clear: both;
    display: table;
    content: " ";
}
}
:after, :before {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
.nav-tabs>li {
    float: left;
    margin-bottom: -1px;
}
.nav>li {
    position: relative;
    display: block;
}
.nav {
    padding-left: 0;
    margin-bottom: 0;
    list-style: none;
}
ol, ul {
    margin-top: 0;
    margin-bottom: 10px;
}
li{
    text-align: -webkit-match-parent;
}
.nav-tabs>li.active>a, .nav-tabs>li.active>a:focus, .nav-tabs>li.active>a:hover {
    color: #555;
    cursor: default;
    background-color: #fff;
    border: 1px solid #ddd;
    border-bottom-color: transparent;
}
.nav-tabs>li>a {
    margin-right: 2px;
    line-height: 1.42857143;
    border: 1px solid transparent;
    border-radius: 4px 4px 0 0;
}
.nav>li>a {
    position: relative;
    display: block;
    padding: 10px 15px;
}
a {
    color: #337ab7;
    text-decoration: none;
}